How are you using NotebookLM from Google?

Beyond the “podcast” feature, what do you find most exciting about NotebookLM? The podcast summarization feature is impressive, but it gets old quickly as the style is repetitive, and one cannot change the voices. However, the tool goes well beyond that and can function as a collaboration space.

I have been using it to create thematic summaries of multiple documents and also to share longer-form texts with friends in a simplified way. I have also used it as a brainstorming scratchpad for teams.

What are you using it for?

...and, do you know if there is a limit to the number of sources to be added or a limit to the "context window" size?

Thanks!